1, longan processing: cut the longan one by one with a stick, pick out the bad ones and leave the good ones for later use;

2, longan cleaning: wash off the dust on the longan skin with clear water, do not wash too hard, it is best to wash with clear water;

3. Water boiling of longan: boil the water until it boils, and then add longan 1 to 2 minutes, which is only used for disinfection and sterilization, which is beneficial to drying;

4, dried longan: covered with gauze to prevent dust, exposed to the sun for about 3 to 4 days, waiting for the water of longan to evaporate;

5, longan preservation: sealed preservation, packed in plastic bags, stored in a cool place.